Compressing-machine.



J. E-GLIDDEN, DECD.

s. E. GLIDDEN. ADMINISTRATRIX.

COMPRESSING MACHINE.

APPLICATION FILED JULY 13. 1910.

PatentedJuly 20, 1915.

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JOHN E. GLIDDEN', 0E BEVERLY, MASSACHUSETTS, BY SADIE E. GLIDIDEN,GUARDIAN;

SAID SADIE E. GLIDDEN, ADMINI STRATRIX 0F SAID JOHN MACHINERY COMPANY,

ASSIGNOR TO UNITED SHOE A CORPORATION OF NEW JERSEY.

E. GLIDDEN, DECEASED, 0E PATERSON, NEW JERSEY,

COMPBESSING-MACHIN E.

Fatented July 20, 1915.

Application filed July 13, 1910. Serial No. 571,774.

To all whom it may concern Be it known that JOHN E. GLmDEN, of Beverly,in the county of Essex and State of Massachusetts, insane, inventedcertain Improvements in Compressing-Machines, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like reference characters on the.

drawings indicating like parts in the several figures.

This invention relates to heel compressing machines, and moreparticularly 'to molds for use in such machmes.

The present embodiment of the invention adapted for use in a machine ais particularly of the type disclosed in United States Letters PatentNo. 776,787, granted December 6, 1904, but it should be understood thatreference is made to said patent for purposes of illustration only, isnot limited in its application to use in this particular machine.

It is often desirable to mold a heel with the tread face thereof on topand the heel especially when moldseat on the underside, ing that type ofheel larger area than the having a tread face of heel seat. This can bedone by the substitution of a flat plate for v the heel seat die, and asuitably formed heel seat die for the top lift plate in the machineshown in the patent above referred to, but the molded blank cannot thenbe successfully ejected from the mold, since the surface of I the heelseat die is inclined and consequently can not be brought flush with thetop of the mold, which is horizontal. I

An object of the present invention accordingly consists in theproduction of a heel seat die which can be automatically positioned sothat the compressed heel may be ejected from the mold tainty.

In practice, the invention is preferably embodied in a die having aninclined convex face suitably formed for molding a heel seat upon .aheel, the die being yieldingly mounted for pivotalmovement within amold, and forming the bottom thereof. Suitable means, such as aspring,tends tomove one end of the die into such a position that the seatforming surface ofthe die-is, in general,approximately either parallelto or flush with the top of the mold.

the-clamping arms of the and that the invention 1 with ease and cer- Thedie may be mounted;

chine, be moved into such a position that its surface is substantiallyflush with the top of the mold, when the compressed heel resting uponthe surface of the die may be easily pushed off by the feeding mechanismof the machine as a new blank is being brought into compressing positionthereby. By reason of the pivotal mounting of the heel seat die it ispossible to elevate its rear enduntil the upper surface of the die atthat point is on a level with the top of the mold and yet not allow thebreast end of the die to project above the top of the mold into the pathof blank feeding device. 1

Since the die is yieldingly mounted it can, under the molding pressure,assume the proper position to form the inclined heel seat correctly uponthe blank being operated upon. i

The details of a preferred, form of the invention will be set forth inthe following description taken in connection with the accompanyingdrawings in which,-

Figure l is a central sectional view of the heel, seat die and the moldin which it is mounted; and Fig. 2 is a perspective view of the heelseat die and its mounting plate and spindle.

In the drawings, numeral 1 indicates a reciprocating cross head upon-theupper surface of which rest side dies 2 and a breast die 3. The saidside and breast dies are mounted to slide laterally toward and from eachother upon the upper surface of the cross head and thus form a moldwhich is capable of contraction and expansion.

Within. a countersunk bore in the cross head 1 a bushing 4 is supported.The bus) ing iscentrally bored to receive the spindle 5, to which thesupporting plate 6 is rigidly attached by means of the pin 7. Upon thesupporting plate 6 is mounted the heel seat die 8 by meansofthe pivotpin 9 which passes through a lug lO projecting upwardly from the plate6-intoa recess in the breast end of the die 8. A spring 11 interposedbetween the plate 6 and the die 8 normally tends to urge the rearportion of the said die upwardly into the position shown in Fig. 1.

The spring 11 surrounds a screw 12, the point of which enters the die 8and the head of which engages a'shoulder 13 in the hole 14k, whichextends through the plate 6 and within which the screw head may movevertically. The screw head and the shoulder 13 thus constitute means forlimiting the upward movement of the rear end of the heel seat die 8.

The heel seat die 8 may be provided with the usual convex projection 15for forming a lip in the breast end of the heel seat. 16 indicates astationary follower or compressing member having a fiat under surfacefor forming a tread face upon a heel blank. The follower is so locatedand proportioned that when the mold is closed upon the heel blank tocompress the blank laterally and the cross head carrying the mold isthen moved upwardly toward the stationary follower, the latter willenter and be closely embraced by the side wall of the mold. One of theblank clamping arms of a heel feeding device is indicated at 17.. Thefeeding device may be of any preferred form, preferably similar to thatshown in the patent previously referred to. A pin 18 is yieldinglypressed to enter the recess 19 in the spindle 5 by the spring 20, andmay be withdrawn sufficiently to allow the removal of the spindle withthe supporting plate and heel seat die mounted thereon from the mold.

The dotted lines in Fig. 1 show the posi tioninto which the heel seatdie 8 is moved when it is desired to ejectthe compressed heel from themold. It will be readily seen that if the heel seat die were not tiltedfrom the position in which it lies while the heel blank is beingcompressed, the compressed blank could not be ejected successfully fromthe mold by the rearwardly moving clamping arms 17 since if the die wereonly elevated until the upper edge of the lip forming projection 15 wereflush with the top of the mold, then the rear end of the blankwouldstill be a considerable distance within the mold and the heel couldnot be pushed rearwardly off the heel seat die. If the die be raisedhigh enough to allow the rear edge of the heel to move over the top ofthe mold then the projection 15 would be in the path of the arms 17 anddamage to the machine would result. The parts are, therefore, sodesigned that when the rear end of the heel seat die is elevated by thespring 11 into the position shown in Fig. 1, the edge 18 will beelevated to the same level as the upper edge of the projection 15. Thedie maythen be moved upwardly into the position shown in dotted linesand the compressed heel may be readily removed therefrom by the arms 17.

The operation of the device is as follows :Assuming that the cross head1 is in its lowered position and a heel blank has been placed within themold upon the die 8, the cross head is moved upwardly. During the firstpartof the upward movement of the cross head the side dies 2 and thebreast die 3 are moved horizontally toward each other to compress theheel blank laterally. In the continued upward movement of the cross headand the mold carried thereon, the upper surface of the blank will engagethe follower 16. The vertical pressure thus brought to bear upon theblank will first depress the rear end of the die 8 against the tensionof the spring 11 until the under side of the die rests upon thesupporting plate 6 and the heel seat forming upper surface thereofassumes an inclined position with relation to the surface of thefollower 16. The upper surface of the die 8 is properly convexed to moldthe seat surface upon the heel blank. As the mold is moved fartherupward, the blank is compressed and molded between the follower 16 andthe die 8. As the mold again moves downwardly, the side and breast diesare first moved outwardly, thus relieving the heel of lateral pressure.The heel seat die is then elevated into the position shown in dottedlines in Fig. 1, its rear end being elevated by the spring 11. A newheel blank is then brought by the clamp 17 into position to be depositedupon the heel seat die, the advancing'ends of the arms 17 pushingthepreviously compressed heel off the surface of the die. The die andheel blank are then lowered into the mold and the operation justoutlined is repeated.

Having fully described the invention, what 100 is claimed as new anddesired to be secured by Letters Patent of the United States is 1. Aheel compressing machine having, in combination, a heel seat die movablefrom an inclined to an-approximately horizontal 10o position, andautomatic means tending normally to keep the die in the latter position.

2. Ina machine of the class described, the. combination of an angularlymovable heel seat die having-a curved face, and means 110 tending tomaintain the central points of the breast and rear edges of said face inapproximately the same horizontal plane.

3. In a machine of the class described, the combination of angularlyyielding 115 means for forming an inclined heel seat sur-v face upon aheel blank, and means tending to maintain said heel seat forming meansin a generally horizontal position.

1. In a heel compressing machine, side .120

' compressing member, a vertically holding the central portion of theedge of the heel seat molding surface from which the heel is ejected atapproximately the same level as the central portion of the edge of saidsurface to which the heel is fed, while the heel is being ejected fromthe mold.

6. In a compressing machine, a stationary follower, a crosshead movabletoward and from said follower, means for placing a blank in compressingposition, and means for ejecting a compressed blank, said ejecting meanscomprising a member mounted for movement about a horizontal pivot andengaging the under side of the blank.

7. A machine for compressing shoe parts, comprising the combination of astationary movable crosshead between which and said stationarycompressing member a blank may be compressed, and ejecting mechanismcomprising a vertically movable spindle, a member pivotally connected tosaid spindle and a spring between said last mentioned memher and saidspindle.

8. A machine for compressing shoe parts, comprising the combination of astationary compressing member, a crosshead movable toward saidstationary member to apply pressure to a blank placed therebetween, andejecting mechanism comprising a spindle guided for vertical movement insaid crosshead, a blank engaging plate, a pivotal connection betweensaid plate and said spindle, and a spring tending to move said plateaway from said spindle.

9. A machine for compressing shoe parts, comprising a stationarycompressing die, a crosshead movable toward and from said die, meansupon said crosshead providing a'space or cavity within which a blank maybe compressed, and means for ejecting the compressed blank from themachine, said ejecting means comprising a pivoted blank engaging membermovable through said space or cavity and a spring tending to tilt saidblank engaging member about its pivot.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SADIE E. GLIDDEN, Guardian of John E. Gladden. Witnesses:

GEORGE H. GLJDDEN, CHESTER E. RooERs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

